Vacuum and plasma-processed coconut sawdust for removal of methyl red dye in water

Authors

  • Roy B. Tumlos National Institute of Physics, University of the Philippines Diliman and Department of Physical Sciences and Mathematics, University of the Philippines Manila
  • Elias Teofilo S. Osorio National Institute of Physics, University of the Philippines Diliman
  • Julie Anne S. Ting National Institute of Physics, University of the Philippines Diliman
  • Leo Mendel D. Rosario National Institute of Physics, University of the Philippines Diliman and College of Arts, Sciences, and Education, FEATI University
  • April M. Ulano National Institute of Physics, University of the Philippines Diliman
  • Henry V. Lee National Institute of Physics, University of the Philippines Diliman
  • Gladys R. Regalado National Institute of Physics, University of the Philippines Diliman
  • Henry J. Ramos National Institute of Physics, University of the Philippines Diliman

Abstract

The removal of methyl red dye from simulated wastewater using untreated, vacuum treated, and plasma treated coconut sawdust has been investigated. All treated coco lumber sawdust showed an increase in % dye removal compared to the untreated cocolumber sawdust. For each treatment, using a dye concentration of 150 mg/L, contact time of 120 minutes, adsorbent dosage of 400 g/100 mL, and ph of 7, the highest recorded % dye removal are as follows: formaldehyde treatment (20.51%), sulphuric acid treatment (40.45%), vacuum dried (61.74%), hydrogen plasma (64.54%), oxygen plasma (66.89%), and argon plasma (69.57%), compared to the untreated (11.20%). From the results of the study, it is concluded that new methods like vacuum drying and plasma treatments of coconut sawdust increase its effectiveness as an adsorbent for methyl red dye removal.

SPP 2009 Proceedings Cover

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Published

2009-10-28

Issue

2009: Proceedings of the 27th Samahang Pisika ng Pilipinas Physics Congress

Section

Instrumentation and Environmental Physics

License

By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Vacuum and plasma-processed coconut sawdust for removal of methyl red dye in water”, Proc. SPP, vol. 27, no. 1, pp. SPP–2009, Oct. 2009, Accessed: Mar. 27, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2009-1A-03